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Maintenance
Preventing gum formation and corrosion in the
fuel system
To prevent gum formation and corrosion in the fuel system, use
a fuel stabilizer in the gasoline if it has been in the tank for more
than two weeks. Fuel stabilizer is available from your Volvo
Penta dealer.
EFI models: Some marinas sell fuel with lead additives. Do
not use leaded fuel, as it may plug the fuel injectors.
DANGER!
Fuel leakage can contribute to a fire and/or explosion.
Frequently inspect nonmetallic parts of the engine's
fuel system and replace if excessive stiffness, dete-
rioration, or fuel leakage is found.
To prevent fire and explosion, perform all service procedures
with the engine turned OFF.
Failure to inspect your work could allow fuel leakage to go
undetected. This could become a fire or explosion hazard. Af-
ter completing service procedures, start engine and check en-
tire fuel system for possible leaks.
To prevent fire and explosion, Volvo Penta fuel system compo-
nents meet U.S. Coast Guard requirements for fuel and fuel
vapor containment. Do not substitute automotive or other
non-approved parts.
Carburetor GL
The carburetor vaporizes fuel and mixes it with air in proper
quantities to suit the varying needs of the engine. Except for
changing the carburetor fuel filter screen, the carburetor re-
quires no periodic maintenance or adjustment. If operational
problems occur, see your Volvo Penta dealer.
Electronic fuel injection Gi, GXi
The electronic fuel injection (EFI) fuel metering system delivers
the correct amount of fuel to the engine under all operating
conditions. The EFI system is controlled by a microprocessor,
and requires no periodic maintenance or adjustment. If opera-
tional problems occur, see your Volvo Penta dealer.
62
Flame arrestor
Remove the flame arrestor every 50 operating hours.
·
Clean in solvent, air dry, and inspect it for damage.
·
Replace if damaged.
·
Reinstall flame arrestor; make sure unit is securely fas-
tened.
To prevent fire and explosion in the engine compartment, the
flame arrestor must always be in place, properly secured, and
undamaged.
Electric fuel pumps
WARNING!
Check fuel pumps frequently for signs of fuel leak-
age. If leakage occurs, have the fuel pump serviced
immediately by your Volvo Penta dealer.
EFI engines have two electric fuel pumps:
·
a low-pressure pump to bring fuel from the boat tank to the
engine
·
a high-pressure pump to supply the fuel injectors.
(2) Both pumps are protected by a single 20-amp fuse. The
pumps will operate only when the engine is cranking or
running. If a pump does not function, check the fuses and
replace them if necessary. See your Volvo Penta dealer if
further service is required.
CAUTION!
Do not run engine out of fuel or run the electric fuel
pumps dry more than 20 seconds. Running the elec-
tric fuel pumps dry will damage the fuel pumps.
7741591 / 2003-12
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